Not much different. Stony metorites contain the same minerals as continental crust.
Iron-nickel meteorites, such as the one that created Meteor Crater, near Flagstaff, Arizona, more closely resemble the composition of the Earth's solid core.
Cause
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Comets and comet composition
Comets are Comets and Asteroids are Asteroids
how are comets classfied
Comets!
Comets have chemicals and gases.
Comets are made mostly of ice.
Comets and comet composition
One thing that makes comets unique is that they each have a different chemical composition. Another thing is, each comet has its own distinct orbit around a particular star.
In the sense that an observer can see tails on comets - no, the gravity and composition of Mars is not favorable to the production of a tail.
The Oort cloud is spherical cloud of or shell comets nearly a light-year from the Sun. Comets are disturbed from this cloud by gravitational attraction and other factors and pass into the area occupied by the inner planets (Earth for example). Scientists then can observe these transient bodies to determine the composition of material in the Oort cloud.
Comets are Comets and Asteroids are Asteroids
comets
Comets
how are comets classfied
There are no comets on Neptune because Neptune is a planet and comets are, well, comets. They have nothing to do with each other.
comets crash into all planets!Planets don't have comets. Planets have moons. Comets orbit the sun
The singular form is comet, the plural form is comets, the possessive plural is comets'. Example: The comets' paths will not cross.